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#include "../common/tdb_private.h"
/* Speed up the tests, but do the actual sync tests. */
static unsigned int sync_counts = 0;
static inline int fake_fsync(int fd)
{
sync_counts++;
return 0;
}
#define fsync fake_fsync
#ifdef MS_SYNC
static inline int fake_msync(void *addr, size_t length, int flags)
{
sync_counts++;
return 0;
}
#define msync fake_msync
#endif
#ifdef HAVE_FDATASYNC
static inline int fake_fdatasync(int fd)
{
sync_counts++;
return 0;
}
#define fdatasync fake_fdatasync
#endif
#include "../common/io.c"
#include "../common/tdb.c"
#include "../common/lock.c"
#include "../common/freelist.c"
#include "../common/traverse.c"
#include "../common/transaction.c"
#include "../common/error.c"
#include "../common/open.c"
#include "../common/check.c"
#include "../common/hash.c"
#include "../common/mutex.c"
#include "tap-interface.h"
#include <stdlib.h>
#include "logging.h"
static void write_record(struct tdb_context *tdb, size_t extra_len,
TDB_DATA *data)
{
TDB_DATA key;
key.dsize = strlen("hi");
key.dptr = discard_const_p(uint8_t, "hi");
data->dsize += extra_len;
tdb_transaction_start(tdb);
tdb_store(tdb, key, *data, TDB_REPLACE);
tdb_transaction_commit(tdb);
}
int main(int argc, char *argv[])
{
struct tdb_context *tdb;
size_t i;
TDB_DATA data;
struct tdb_record rec;
tdb_off_t off;
/* Do *not* suppress sync for this test; we do it ourselves. */
unsetenv("TDB_NO_FSYNC");
plan_tests(5);
tdb = tdb_open_ex("run-transaction-expand.tdb",
1024, TDB_CLEAR_IF_FIRST,
O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
ok1(tdb);
data.dsize = 0;
data.dptr = calloc(1000, getpagesize());
if (data.dptr == NULL) {
diag("Unable to allocate memory for data.dptr");
tdb_close(tdb);
exit(1);
}
/* Simulate a slowly growing record. */
for (i = 0; i < 1000; i++)
write_record(tdb, getpagesize(), &data);
tdb_ofs_read(tdb, TDB_RECOVERY_HEAD, &off);
tdb_read(tdb, off, &rec, sizeof(rec), DOCONV());
diag("TDB size = %zu, recovery = %llu-%llu",
(size_t)tdb->map_size, (unsigned long long)off, (unsigned long long)(off + sizeof(rec) + rec.rec_len));
/* We should only be about 5 times larger than largest record. */
ok1(tdb->map_size < 6 * i * getpagesize());
tdb_close(tdb);
tdb = tdb_open_ex("run-transaction-expand.tdb",
1024, TDB_CLEAR_IF_FIRST,
O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
ok1(tdb);
data.dsize = 0;
/* Simulate a slowly growing record, repacking to keep
* recovery area at end. */
for (i = 0; i < 1000; i++) {
write_record(tdb, getpagesize(), &data);
if (i % 10 == 0)
tdb_repack(tdb);
}
tdb_ofs_read(tdb, TDB_RECOVERY_HEAD, &off);
tdb_read(tdb, off, &rec, sizeof(rec), DOCONV());
diag("TDB size = %zu, recovery = %llu-%llu",
(size_t)tdb->map_size, (unsigned long long)off, (unsigned long long)(off + sizeof(rec) + rec.rec_len));
/* We should only be about 4 times larger than largest record. */
ok1(tdb->map_size < 5 * i * getpagesize());
/* We should have synchronized multiple times. */
ok1(sync_counts);
tdb_close(tdb);
free(data.dptr);
return exit_status();
}
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